text: from . import settings, utils
  
  
  class Config(object):
      """
      The global config wrapper that handles the backend.
      """
      def __init__(self):
          super(Config, self).__setattr__('_backend',
              utils.import_module_attr(settings.BACKEND)())
  
      def __getattr__(self, key):
          try:
              default, help_text = settings.CONFIG[key]
          except KeyError:
              raise AttributeError(key)
          result = self._backend.get(key)
          if result is None:
              result = default
              setattr(self, key, default)
              return result
          return result
  
      def __setattr__(self, key, value):
          if key not in settings.CONFIG:
              raise AttributeError(key)
          self._backend.set(key, value)
  
      def __dir__(self):
          return settings.CONFIG.keys()
  